When looking for help in a game just post it in the appropriate section (PS2 Game Help, for example, for Lego Star Wars) and try to give as much detail about the problem (what level, info on what you are trying to do, etc.). That makes it easier for some of us on staff or other members to come in and lend a hand. Just click on the new thread button as you did here.
Quizzing up on good games to buy can probably go in the PlayStation Discussion area of the Community section.